#12593 NORM 13.1.0: Unable to restart XO-4 from Sugar

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#12593: Unable to restart XO-4 from Sugar
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           Reporter:  wad       |       Owner:  erikos                           
               Type:  defect    |      Status:  new                              
           Priority:  normal    |   Milestone:  13.1.0                           
          Component:  sugar     |     Version:  Development build as of this date
         Resolution:            |    Keywords:  XO-4, restart                    
        Next_action:  diagnose  |    Verified:  0                                
Deployment_affected:            |   Blockedby:                                   
           Blocking:            |  
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Comment(by godiard):

 I found one way to reliably reproduce this issue:

 1) Use two xo-4. In one xo, start Write activity and share it.

 2) Join the activity in the other xo.

 3) Write something in every xo (collaboration does not work [1]).

 4) Close the activity in the xo where started the collaboration, and later
 in the other xo.

 5) Go to the neighborhood view: if you see a orphan write icon (there are
 no activity shared right now), you can continue, if not, try again from
 step 1.

 6) Try close the sugar session from the menu in the main buddy icon. You
 will see the cursor changing for a second to the clock, but sugar will no
 close. Restart or shutdown is the same.

 Adding log, I found the problem is in the class sugar3.SessionManager.
 This class in the method initiate_shutdown call to
 SugarExt.Session.initiate_shutdown() (SugarExt.Session is GsmSession
 implemented in gsm-session.c) The problem is GsmSession never trigger
 shutdown_completed signal.

 What is the use of this GsmClient class? Can we ignore if has not closed?

 [1] http://bugs.sugarlabs.org/ticket/4436

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Ticket URL: <http://dev.laptop.org/ticket/12593#comment:8>
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